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Unfired ceramsite and preparation method thereof

A technology of ceramsite and granules, which is applied in the field of non-fired ceramsite and its preparation, can solve the problems of flying lime and sand, large land expropriation fees, and consumption, and achieve low production energy consumption, solve residual mud, and meet strength standards Effect

Active Publication Date: 2021-12-31
GUANGZHOU MARITIME INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]However, most of the construction waste is transported to the suburbs or villages by the construction unit without any treatment, and is stacked in the open air or buried, which consumes a lot of land acquisition fees, Garbage removal and transportation costs and other construction expenses, at the same time, problems such as dust, dust and sand flying during the removal and stacking process have caused serious environmental pollution

Method used

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  • Unfired ceramsite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An unfired ceramsite, which is composed of the following materials in parts by weight: 90 parts of residual mud, 10 parts of Portland cement, 4 parts of expanded perlite particles, 0.3 parts of polyacrylamide, 0.2 parts of short fibers, and 0.2 parts of water repellent , 0.2 parts of HPMC hydroxypropyl methylcellulose, 0.05 parts of curing agent.

[0028] Its preparation method is as follows:

[0029] S1: Mix 90 parts of residual mud, 0.3 parts of polyacrylamide, 0.2 parts of short fibers, 0.2 parts of water repellent and 0.05 parts of curing agent, then add 10 parts of portland cement and mix evenly to obtain component A;

[0030] S2: Stir 0.2 parts of HPMC hydroxypropyl methylcellulose and 4 parts of expanded perlite particles evenly, spray about 3 parts of water to wet the surface of perlite particles, and prepare component B;

[0031] S3: Mix component A and component B evenly, add them to a ball forming machine for granulation, and prepare unfired ceramsite C1.

Embodiment 2

[0033] An unfired ceramsite, which is composed of the following materials in parts by weight: 85 parts of residual mud, 15 parts of sulphoaluminate cement, 2 parts of expanded perlite particles, 0.1 part of polyacrylamide, 0.4 parts of short fibers, and 0.3 parts of hydrophobic Agent, 0.4 parts of HPMC hydroxypropyl methylcellulose, 0.07 parts of curing agent.

[0034] Its preparation method is as follows:

[0035] S1: Mix 85 parts of residual sludge, 0.1 part of polyacrylamide, 0.4 part of short fiber, 0.3 part of water repellent and 0.07 part of curing agent, then add 15 parts of sulfoaluminate cement and mix evenly to obtain component A;

[0036] S2: Stir 0.4 parts of HPMC hydroxypropyl methylcellulose and 2 parts of expanded perlite particles evenly, spray about 3 parts of water to wet the surface of perlite particles, and prepare component B;

[0037] S3: Mix component A and component B evenly, add them to a ball forming machine for granulation, and prepare unfired ceram...

Embodiment 3

[0039] An unfired ceramsite, which is composed of the following materials in parts by weight: 88 parts of residual mud, 12 parts of Portland cement, 2 parts of expanded perlite particles, 0.3 parts of polyacrylamide, 0.3 parts of short fibers, and 0.5 parts of water repellent , 0.3 parts of HPMC hydroxypropyl methylcellulose, 0.08 parts of curing agent.

[0040] Its preparation method is as follows:

[0041] S1: Mix 88 parts of residual mud, 0.3 parts of polyacrylamide, 0.3 parts of short fibers, 0.5 parts of water repellent and 0.08 parts of curing agent, then add 12 parts of Portland cement and mix evenly to obtain component A;

[0042] S2: Stir 0.3 parts of HPMC hydroxypropyl methylcellulose and 2 parts of expanded perlite particles evenly, spray about 2 parts of water to wet the surface of perlite particles, and prepare component B;

[0043] S3: Mix component A and component B evenly, add them into a ball forming machine for granulation, and prepare unfired ceramsite C3. ...

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Abstract

The invention discloses an unfired ceramsite and a preparation method thereof. The unfired ceramsite is prepared from, by weight, 85 to 90 parts of residual mud, 10 to 15 parts of an adhesive, 2 to 4 parts of expanded perlite particles, 0.1 to 0.3 part of a thickening agent, 0.2 to 0.4 part of short fibers, 0.2 to 0.5 part of a water repellent, 0.2 to 0.5 part of a water-retaining agent, 0.05 to 0.1 part of a curing agent and 1 to 3 parts of water. The preparation method comprises the following steps: firstly, mixing the residual mud, the thickening agent, the short fibers, the water repellent and the curing agent, adding the adhesive, and uniformly mixing to obtain a component A; and uniformly mixing and stirring the water-retaining agent and the expanded perlite particles to obtain a component B, mixing the component A and the component B, putting the mixture into a ball forming mill, and preparing the unfired ceramsite. According to the invention, the unfired ceramsite is prepared by using a large amount of residual mud as a main component of the unfired ceramsite, so that a large amount of residual mud is effectively recycled, waste is turned into wealth, and the unfired ceramsite has obvious social and economic benefits.

Description

technical field [0001] The invention belongs to the field of construction waste treatment, and in particular relates to an unfired ceramsite and a preparation method thereof. Background technique [0002] Construction waste refers to the dregs, spoils, waste materials, residual mud and other wastes generated during the construction, laying or demolition, and repair of various buildings, structures, and pipe networks by construction units or individuals. With the acceleration of industrialization and urbanization, the construction industry is also developing rapidly, and the accompanying construction waste is increasing. The amount of construction waste in China has accounted for more than 1 / 3 of the total urban waste. [0003] However, the vast majority of construction waste is transported to the suburbs or villages by the construction unit without any treatment, and is piled in the open air or landfilled, which consumes a lot of construction funds such as land acquisition f...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B16/02C04B16/06C04B18/04C04B111/40
CPCC04B28/26C04B18/0418C04B16/02C04B16/0633C04B2201/50C04B2201/20C04B2111/40C04B14/185C04B24/2652C04B2103/65C04B24/383C04B7/02C04B7/32Y02W30/91
Inventor 李建新尹衍升杨朋刘向阳鲍树峰
Owner GUANGZHOU MARITIME INST